State Street Dam
Key Takeaway
State Street Dam is classified as significant hazard in Michigan. It was completed in 1938 and is 88 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 63.6% in MI) |
| Dam Length | 355 ft |
| Dam Type | Gravity |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 140 acres |
| Drainage Area | 308 sq mi |
| Max Discharge | 5,000 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | MI00005 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
City of Alma
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of State Street Dam?
State Street Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates State Street Dam?
State Street Dam is owned by City of Alma (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was State Street Dam built?
State Street Dam was completed in 1938, making it 88 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of State Street Dam?
State Street Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is State Street Dam?
State Street Dam has a dam height of 18 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was State Street Dam last inspected?
State Street Dam was last inspected on May 14, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.